1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Lana71 [14]
3 years ago
8

SOMEONE HELP WHAT IS THE ANSWER TO THESE QUESTIONS PLEASE HELP

Mathematics
1 answer:
romanna [79]3 years ago
7 0
10.
Answer: 42° and 138°
Steps: First find value of x by adding both equations and setting them equal to 180°:
3x + 12x - 30 = 180
15x - 30 = 180
15x = 210
x = 14

Next, put value of x into equations to find the angle:
3x
3(14)
42°

12x - 30
12(14) - 30
168 - 30
138°


11. Answer: 28°
Steps: Complementary angles add up to 90°, so subtract 62° from 90° to find its complementary angle.
90 - 62 = 28


12. Answer: Corresponding angles are congruent.
You might be interested in
Jay and Ted observed two points, P and Q, on a number line.
kobusy [5.1K]
Start at 0 and move to point P. To do this, we simply move left 1/8 of a unit. Similarly, we move 1/8 of a unit to go from 0 to point Q

So the distance from P to 0 is the same as the distance from Q to 0.

Therefore, the absolute values are the same

Answer: Choice A) Jay is correct because each point is 1/8 a unit away from 0
7 0
3 years ago
Now factor the expression. 1/2 a + 6
Sophie [7]

Answer:

1a+12/2

Step-by-step explanation:

1/2a+6

1/2a+6/1

1/2a+6/1*2

1/2a+12

1a+12/2

3 0
3 years ago
Ray Industries bought a touch screen monitor for $1200. It is expected to depreciate at a rate of 25% per year. What will the va
torisob [31]
A=1,200×(1−0.25)^(3)
A=506.25
6 0
3 years ago
Read 2 more answers
A 99% confidence interval for the mean μ of a population is computed from a random sample and found to be 6 ± 3. We may conclude
valentina_108 [34]

Answer:

A. there is a 99% probability that μ is between 3 and 9.

Step-by-step explanation:

From a random sample, we build a confidence interval, with a confidence level of x%.

The interpretation is that we are x% sure that the interval contains the true mean of the population.

In this problem:

99% confidence interval.

6 ± 3.

So between 6-3 = 3 and 6 + 3 = 9.

So we are 99% sure that the true population mean is between 3 and 9.

So the correct answer is:

A. there is a 99% probability that μ is between 3 and 9.

4 0
3 years ago
Read 2 more answers
Consider the matrices.<br> What products are defined for these matrices?
pychu [463]

Answer:

Shows how to quickly check if a matrix product is defined and, if it is, how to ... You can use this fact to check quickly whether a given multiplication is defined.

Step-by-step explanation:

6 0
3 years ago
Other questions:
  • a car travels at 54 km/h for first 20seconds , 36km/h for next 30seconds and finally 18km/h for next 10 seconds find the averade
    6·1 answer
  • A cone has a diameter of 6 centimeters and a height that is 3 times the diameter. Using 3.14 for pi, which of the following can
    8·2 answers
  • James correctly answered 85% of the 60 problems on his math test. how many problems did James answer correctly?
    10·2 answers
  • Find the sum of the series and show your process for finding each term leading to the final sum.
    6·1 answer
  • Which function is an example of exponential decay?
    13·1 answer
  • Can someone please help me?
    5·2 answers
  • 43. If L is the midpoint of KN an MP, which methods can be used to prove the triangles are congruent
    15·1 answer
  • Someone pls help me I will make you Brainly
    13·1 answer
  • Use the Pythagorean theorem to prove whether or not each set of numbers represent the side lengths of a right triangle.
    12·1 answer
  • PLEASE HELP!! I NEED TO PASS MATH
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!